Osa Weather (Next 3 days): The snow forecast for Osa is: Heavy rain (total 31.0mm), heaviest during Tue night. Very mild (max 15°C on Sun afternoon, min 1°C on Sun night). Winds decreasing (fresh winds from the SW on Sun night, light winds from the SW by Mon night).
Osa Weather (Days 4-6): Heavy rain (total 53.0mm), heaviest during Fri night. Very mild (max 14°C on Thu morning, min 4°C on Fri night). Winds increasing (calm on Thu afternoon, strong winds from the NNW by Fri night).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 6 |  | ||||
| Bottom Lift: | 5 | |
Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  |  | |  |  |  | | | |  | |  | | |
clear | some clouds | rain shwrs | some clouds | clear | some clouds | light rain | light rain | heavy rain | mod. rain | cloudy | clear | clear | cloudy | light rain | mod. rain | heavy rain | heavy rain | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | 1 | — | — | — | 1 | 1 | 28 | 6 | — | — | — | — | 1 | 7 | 13 | 26 | |
max °C | 14 | 15 | 12 | 8 | 10 | 5 | 10 | 9 | 9 | 9 | 9 | 7 | 14 | 13 | 10 | 10 | 10 | 9 |
min °C | 9 | 12 | 1 | 3 | 5 | 4 | 8 | 8 | 6 | 6 | 7 | 6 | 10 | 11 | 9 | 9 | 9 | 4 |
6 | 9 | -3 | -1 | 3 | 3 | 5 | 4 | 5 | 5 | 6 | 4 | 10 | 11 | 7 | 6 | 7 | -2 | |
74 | 70 | 83 | 37 | 15 | 19 | 52 | 89 | 99 | 97 | 95 | 87 | 82 | 79 | 89 | 88 | 97 | 98 | |
2650 | 2950 | 2500 | 2400 | 2700 | 2850 | 2700 | 2750 | 2750 | 2700 | 3200 | 3250 | 3400 | 3300 | 2800 | 2800 | 2950 | 2400 | |
 | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — |
 | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — | — | 6:04 | — |
Heavy rain (total 31.0mm), heaviest during Tue night. Very mild (max 15°C on Sun afternoon, min 1°C on Sun night). Winds decreasing (fresh winds from the SW on Sun night, light winds from the SW by Mon night).
Heavy rain (total 53.0mm), heaviest during Fri night. Very mild (max 14°C on Thu morning, min 4°C on Fri night). Winds increasing (calm on Thu afternoon, strong winds from the NNW by Fri night).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 18 Feb 2026 |
| Snow Alerts | Create Alert |
0.2 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.7 | Powder days Fresh snow, limited sun, any wind. |
0.2 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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